Trap.



G. J; BOHLANDER.

TRAP.

APPLIOATION FILED JULY 5, 1911.

Patented July 22, 1913.

gogfidf/q K mww N W w QL RN WWQ GEORGE J. BOHLANDEB, 0F MELVIN, ILLINOIK TRAP.

Specification of Letters Patent.

Patented July 2%, 1913.

Application filed July 5, 1911. Serial No. 636,870.

To all whom it may concern Be it known that I, Gnonon J. Boii'nmnnn, a citizen of the United States, residing at Melvin, in the county of F ord and State of Illinois, have invented new and useful improvements in Traps, of which the following is a specification.

This invention relates to certain novel and useful improvements in traps for drains, sewers and similar structures, and has particular application to a device of the class described, adapted to be placed within or at the end of a drain or pipe line to perform the combined function of a water and animal stop.

As is weltknown, small animals such as rabbits, musk rats and the like, frequently enter the drains from open fields, become imprisoned therein, so that it is necessary to dig up the drain or remove a portion of the same to take out the animal thus entailing the loss of considerable time and labor, in addition to annoyance. Furthermore, on farms and the like, especially during or after a heavy rain, the water backs up from the main drain or conduit to the small or branch drains, thereby flooding a portion of the field.

it is my purpose to provide a structure of drain or pipe trap which will prevent the entrance of small animals to the drain and. also act as a back stop to prevent the back flow of the water.

I also aim to provide a trap which will embrace the desired features of simplicity, durability and efficiency.

Nith the above-recited objects and others of a similar nature in view, the invention consists in the construction, combination and arrangement of parts, set forth in and falling within the scope of the appended claim.

in the accompanying drawings: Figure 1 is a side elevation of a portion of the drain provided with my improvements. Fig. 2 is a vertical longitudinal sectional view of the same.

leferring to the accompanying drawings in detail, the numerals 1 and 2 indicate pipe sections or tiles entering into the construction of the drain and adapted to be connected to the trap.

My improved trap is composed of a male and female section a and 7), respectively. The section a comprises a tubular cylindrical body portion having a water passage 3 extending therethrough and is also provided with a flanged end f for the reception of the adjacent end of the drain tile or pipe. At its opposite end, the section a is provided with an outer circumferciiitial flange 5 and. an inner cireumferential flange (3 arranged concentric relative thereto, an annular space T gradually decreasing in depth from the lowermost point of the section to the topmost point thereof being left between the flanges for the reception of the circular rib 8 of a depth corresponding to that of the space 7 carried by the gate 9, the latter being pivotally connected as at it) through the medium of a staple 11 which is driven into the flange 5, and an eye 12 carried by the gate. The shoulder 13 formed by the flange and the end of thebody of the section (1. is adapted to form an abutment for the adjoining end 1st of the female jmemliicr 7). This section i) is also cylindrical in form and is provided with a flared pacage or opening 15 extending therethrough, said passage gradually tapering from the end l t, which receives the section a, toward the end 16, which is flanged as at 1'? for the reception of the adjoining ends of the drain tile or pipe. The interior wall of the female member adjacent to the widened. or flared end thereof is recessed as at 18 to form a space wherein the gate may move when elevated, so that the gate body at the top will not attach or bind against the adjacent side of the section.

in assembling the trap for use, the end of the section a carrying the gate is inserted in the flared or widened end of the section 7) until the end walls of the two sections abut, the end 14 of the section I) overlying the flange 5 of the section a. In this position the gate, which is formed of light metal. or other suitable material is closed by its own weight. The ends of the drain tiles or other devices are then connected as shown in the drawings. When water is admitted to the drain, and flows through the trap from the male to the female section, the pressure of the water will elevate the gate sufficiently to permit it to flow through the drains to the proper point. However, should. there be any backflow of water due to heavy rains or the like, the pressure of such back flow bearing against the gate will overcome the pressure of the water flowing in the opposite direction and hold the gate closed until the back flow or flood has receded. Should any small animal enter the drain through the outlet end, which leads to the reduced end of the female member, and pass into the flared passage of the member, it will not be enabled to continue its passage through the drain, being prevented by the hanging gate. Owing to the gate being circular in form and hung as shown, it cannot push the gate sidewise to effect an entrance, and should it attempt to force its passage through the trap it will close the gate by pressure against the same. The flared portion of the trap at the gate will, however, permit such a small animal to turn around and leave the trap the way it entered, that is, through the outlet.

It will be noted that I have provided a simple yet efficient form of combined water and animal trap, which will be found especially adapted for use in connection with the drains of farms and the like. Furthermore, the structure may be manufactured and installed at a relatively low cost and with but small expenditure of time or labor.

lVhile I have herein shown and described one particular embodiment of my invention by way of illustration, I wish it to be understood that I do not confine myself to all the precise details herein set forth, as modification and variation may be made without departing from the spirit of the invention or exceeding the scope of the claim. Furthermore, I wish it to be understood that the trap and gate may, therefore, be constructed of any suitable material.

I claim In combination, a member having a fluid passage therethrough, a flange formed on one end edge of said member and extending outwardly thereof, a second flange formed on the end edge of the member inwardly of the first flange and concentrically thereof and spaced apart therefrom to form an annular space gradually decreasing in depth from the lowermost point of the section to the topmost point thereof and a gate pivoted to the flanged end edge of said member at the topmost point thereof and provided with an annular rib of a depth less than that of the space between the flanges and adapted to enter the space said gate being normally in engagement with the marginal edges of said flanges to form a fluid tight oint.

] In testimony whereof I afliX my signature in presence of two witnesses.

IV. E. MCLAUGHLIN, W. H. THOMPSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

